Method and apparatus of detecting eye using symmetry and moment characteristics of object
AssigneeElectronics and Telecommunications Research Institute
InventorsSung Jung, Yun Chung, Jang Yoo, Kyo Chung
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Abstract
Provided are a method and apparatus of detecting an eye using symmetrical and moment characteristics of an object. According to the method, an eye band is extracted from a facial image, and eye candidates each having symmetry are detected by extracting symmetrical component from the eye band. After that, a moment line integral is calculated on the basis of contrast of the eye band image and a coordinate of each of the eye candidates is inputted, so that each of the detected eye candidates is verified.
Claims8
A method of detecting an eye using symmetry and moment characteristics of an object, the method comprising:
- extracting an eye band from a facial image;
- extracting a symmetrical component from the eye band to detect eye candidates each having symmetry;
- and
- obtaining moment line integral on the basis of contrast of an image of the eye band and inputting the obtained moment line integral to a coordinate of each of the eye candidates to verify each of the detected eye candidates.
An apparatus of detecting an eye using symmetry and moment characteristics of an object, the apparatus comprising:
- a facial image inputting unit extracting an eye band from a facial image of a user to be verified, extracting y coordinates each having a value less than a predetermined critical value from a curve obtained by calculating a projection curve of a contrast image of the eye band with respect to a y-axis, and extracting a predetermined upper band on the y-axis as the eye band and outputting the same;
- an eye candidate detection unit extracting symmetrical components from the extracted eye band to detect eye candidates each having symmetry;
- and
- a verification unit receiving the eye candidates to verify each of the received eye candidates using moment line integral obtained on the basis of contrast of an image of an eye.
Dependencies are inferred from the claim text.